Struct Backoff 

pub struct Backoff {
    pub initial: Duration,
    pub max: Duration,
    pub multiplier: f64,
    pub max_retries: Option<u32>,
}

Exponential reconnect backoff. Delays grow initial * multiplier^attempt, capped at max. No jitter is applied (a single client reconnecting to a single node needs none); add it externally if fanning many clients at one server.

Fields

initial: Duration

Delay before the first retry.

max: Duration

Upper bound on any single delay.

multiplier: f64

Per-attempt growth factor.

max_retries: Option<u32>

Give up after this many consecutive reconnect attempts produce no event, surfacing the last error from next. The initial connect is not counted; a connection that delivers any event resets the count. None retries forever.

Implementations

impl Backoff

pub fn delay_for(&self, attempt: u32) -> Duration

Delay before retry attempt (0-based: attempt = 0 is the first retry).

Trait Implementations

impl Clone for Backoff

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for Backoff

impl Debug for Backoff

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for Backoff

fn default() -> Self

Returns the “default value” for a type.